Its maximum speed is really incredible, and, according to the latest research, it can reach speeds of up to 58 mph! Another amazing example is the peregrine falcons. They can reach speeds exceeding In water, the fastest animal is the atlantic sailfish - 68 mph in water.
What about people? Sprinter Usain Bolt is the fastest man ever in recorded history, with a recorded speed of What is interesting, scientists found that a man who lived 20 years ago in Australia called T8 ran with the speed of 23 mph. Note, he did it barefoot in the mud, while Bolt uses state-of-the-art running shoes and dedicated track.
Velocity and speed are very nearly the same - in fact the only difference between the two is that velocity is speed with direction. It is also the magnitude of velocity. Velocity, a vector quality, must have both the magnitude and direction specified, e. There are a few other things you can do to maximise efficiency, however. First, try to maintain a constant speed , this will make your engine run as efficiently as possible - use cruise control on flats if you have it.
Second, drive at the highest possible gear within the speed limit , this again helps your engine run as economically as possible. Other tips include turning off AC and having as little weight in your car as you can. Google Maps can tell you your speed, it has an inbuild speedometer , which is only currently for Android users. The unit for speed is distance over time , as it is defined as the amount of time it takes an object to cover a particular distance.
The base, or SI, unit is metres per second , but this is not very practical in everyday life. You are likely more familiar with units such as kilometres per hour, miles per hour and knots.
Any distance over time is a speed unit, so other units of speed include nanometres per fortnight, Boeing s per solar year, or bananas per Friedman.
Take a number, the next one in the sequence is the kilometres if the previous one was miles e. The most common formula for average speed is distance traveled divided by time taken.
The other formula, if you have the initial and final speed , add the two together, and divide by 2. There are two types of acceleration, average and instantaneous. Average acceleration is the change in speed divided by the change of time , and is the how an object's movement changes with time, on average. Instantaneous acceleration is the derivative of speed with respect to time , or the limit of the average acceleration over an infinitesimal period of time.
It is used to find the exact acceleration of an object at a particular time. Embed Share via. Table of contents: Speed, distance, time How fast am I going? Average speed vs average velocity Speed of sound - curious speed related facts FAQ.
Speed, distance, time We have all heard of speed , but how confident are you in your understanding of this concept? How fast am I going? Average speed formula Since the main purpose of this calculator is to calculate average speed, let's take a more in-depth look at this topic.
Speed calculator - how to find your average speed? Check the points below to learn how to use this calculator properly: First, you need to determine the distance. This might be, for example, the distance you have driven from home to another city. Input this into the appropriate field. Now, there is a need to determine the time it took to cover a certain distance.
Input this into the calculator. And here it is, you'll get the average speed. Average speed vs average velocity Speed and velocity might seem to be the same thing, but they're not. Speed of sound - curious speed related facts Do you have a need FAQ Is velocity the same as speed?
What is the most economical driving speed? Can Google Maps tell me my speed? How do you calculate mph to seconds? Take your current speed in either kmph or mph. This pace requires a relatively low level of intensity, and is usually maintainable for a few hours. Increasing aerobic threshold pace allows for a faster sustainable pace and is a large aspect of many marathon training programs. An anaerobic threshold pace is defined by some as the threshold at which glycogen, rather than oxygen, becomes the primary source of energy for the body.
Note that while anaerobic training will result in a person becoming more fit overall, it is not necessarily ideal training for a marathon, since an anaerobic pace is not sustainable for long periods of time. This is not to say that a person should not perform any anaerobic training, as training at or slightly above their anaerobic threshold the level of exercise intensity at which lactic acid builds up more quickly than it can be removed from the bloodstream can also be beneficial.
Similarly to heart rate, the most accurate way to determine these thresholds is through testing within a lab setting. However, both aerobic and anaerobic thresholds can also be estimated using a number of different methods, some of which involve the use of a heart rate monitor. According to a study, the most accurate way to determine anaerobic threshold outside of blood work in a lab is a minute time trial in which heart rate is monitored.
In this time trial, a person must run at maximum effort, averaging their heart rate over the last 20 minutes of the run. The average heart rate over the last 20 minutes is an estimation of the person's anaerobic threshold heart rate, also known as lactate threshold heart rate LTHR.
It is important that the time trial be performed alone. If it is done in a group setting, the duration must be increased to 60 minutes rather than 30 minutes. Aerobic threshold heart rate can be estimated by subtracting 30 beats per minute from the anaerobic threshold heart rate. Essentially, threshold training involves training to postpone the point at which lactate starts to build up in the bloodstream, which effectively postpones the point of fatigue, potentially allowing a person to run farther and faster.
US units metric units other units. Note that placeholder zeros do not need to be entered in the "Time" or "Pace" field. For example, the time 5 minutes 3 seconds does not need to be entered as , and can be entered as You can assess this from an OS map. The brown contour lines on a scale map are 5 or 10 metres apart, with heights indicated.
A thicker line appears every 50 metres. However it is quite hard work. With hindsight, I could have entered the information on each walk, as I use Memory Map and this automatically provides the information. However, in producing this calculator, in response to enquiries in November , we are where we are; as they say. I will include the information in future, at least for hilly areas and may revise previous walks in time.
Maybe consider a donation to them? My calculation adds 1 minute for every 10 metres if the normal walking pace is Naismith's 3 mph and more for slower speeds - see item 6 below.
You really need to decide here whether the descent is going to make life easy or difficult, or have little material impact. Often a difficult section might be offset by an easy section. I suggest if it looks obviously easy, leave the section blank and treat a speedier finish as a bonus or, if some looks difficult say half the descent , just put in a figure for that section.
Please do not use minus figures to denote easy terrain as this will make figures innacurate for the lower speed categories, see below. An alternative might be to leave this blank but add some minutes into the Contingency Section.
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